#include<iostream>

class Base
{
public:
    virtual  void show()
    {
        std::cout<<"base"<<std::endl;
    }
protected:

};

class Derived:public Base
{
public:
        void show()
    {
        std::cout<<"Derived"<<std::endl;
    }
private:

};


int main()
{
    Base*b=new Derived;




}